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Your query 'cenam' produced 568 results New search
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Mexico, CENAM (Centro Nacional de Metrologia)
Complete CMCs in Electricity and Magnetism for Mexico (.PDF file)
AC voltage up to 1000 V: meters. Multimeter, 0.002 V to 1000 V
Relative expanded uncertainty (k = 2, level of confidence 95%) in µV/V: 12 to 600
Direct comparison
Frequency: 10 Hz to 1 MHz
Approved on 28 April 2011
Internal NMI service identifier: CENAM/E010-001-02-a
Uncertainty table
 
AC-DC current transfer: AC-DC transfer difference. Thermal converter plus shunt, 0.001 A to 20 A
Relative expanded uncertainty (k = 2, level of confidence 95%) in µA/A: 30 to 115
Direct comparison
Frequency: 40 Hz to 5 kHz
Approved on 28 April 2011
Internal NMI service identifier: CENAM/E010-006-01-a
Uncertainty table
 
AC current up to 100 A: sources. Multifunction calibrator, 0.001 A to 20 A
Relative expanded uncertainty (k = 2, level of confidence 95%) in µA/A: 35 to 120
Direct comparison
Frequency: 40 Hz to 5 kHz
Approved on 28 April 2011
Internal NMI service identifier: CENAM/E010-004-01-a
Uncertainty table
 
AC current up to 100 A: meters. Multimeter, 0.001 A to 20 A
Relative expanded uncertainty (k = 2, level of confidence 95%) in µA/A: 35 to 800
Direct measurement using a characterized calibrator
Frequency: 40 Hz to 5 kHz
Approved on 28 April 2011
Internal NMI service identifier: CENAM/E003-002-52-a
Uncertainty table
 
AC power and energy: single phase (frequency <= 400 Hz, active power). Multifunction calibrators, 60 W to 2.4E+03 W
Relative expanded uncertainty (k = 2, level of confidence 95%) in µW/VA: 100
Direct comparison
Voltage: 120 V, 240 V
Current: 1 A, 10 A
Power factor: 1 to 0.5, inductive or capactive
Frequency: 60 Hz
Approved on 05 January 2012
Internal NMI service identifier: CENAM/E012-001B-CC
 
AC power and energy: single phase (frequency <= 400 Hz, active power). Power meter, 0 W to 6E+04 W
Relative expanded uncertainty (k = 2, level of confidence 95%) in µW/VA: 20 to 30
Direct comparison
Voltage: 120 V, 240 V, 480 V, 600 V
Current: 0.25 A to 100 A
Power factor: 1 to 0, inductive or capacitive
Frequency: 60 Hz
Approved on 05 January 2012
Internal NMI service identifier: CENAM/E012-001-01
Uncertainty table
 
AC power and energy: single phase (frequency <= 400 Hz, reactive power). VAR meter, 0 var to 6E+04 var
Relative expanded uncertainty (k = 2, level of confidence 95%) in µvar/VA: 20 to 30
Direct comparison
Voltage: 120 V, 240 V, 480 V, 600 V
Current: 0.25 A to 100 A
Power factor: 1 to 0, inductive or capacitive
Frequency: 60 Hz
Approved on 05 January 2012
Internal NMI service identifier: CENAM/E012-001-02
Uncertainty table
 
AC power and energy: single phase (frequency <= 400 Hz, apparent power). VA meter, 30 VA to 6E+04 VA
Relative expanded uncertainty (k = 2, level of confidence 95%) in µVA/VA: 20 to 30
Direct comparison
Voltage: 120 V, 240 V, 480 V, 600 V
Current: 0.25 A to 100 A
Power factor: 1 to 0, inductive or capacitive
Frequency: 60 Hz
Approved on 05 January 2012
Internal NMI service identifier: CENAM/E012-001-03
Uncertainty table
 
AC power and energy: single phase (frequency <= 400 Hz, active energy). Watt-hour meter, 0 J to 7.2E+06 J
Relative expanded uncertainty (k = 2, level of confidence 95%) in µJ/VAs: 20 to 30
Direct comparison
Voltage: 120 V, 240 V, 480 V, 600 V
Current: 0.25 A to 100 A
Power factor: 1 to 0, inductive or capacitive
Frequency: 60 Hz
Measurement time: 120 s
Approved on 05 January 2012
Internal NMI service identifier: CENAM/E012-001-04
Uncertainty table
 
AC power and energy: single phase (frequency <= 400 Hz, reactive energy). VAR-hour meter, 0 vars to 7.2E+06 vars
Relative expanded uncertainty (k = 2, level of confidence 95%) in µvars/VAs: 20 to 30
Direct comparison
Voltage: 120 V, 240 V, 480 V, 600 V
Current: 0.25 A to 100 A
Power factor: 1 to 0, inductive or capacitive
Frequency: 60 Hz
Measurement time: 120 s
Approved on 05 January 2012
Internal NMI service identifier: CENAM/E012-001-05
Uncertainty table
 
AC power and energy: single phase (frequency <= 400 Hz, apparent energy). VA-hour meter, 3.6E+03 VAs to 7.2E+06 VAs
Relative expanded uncertainty (k = 2, level of confidence 95%) in µVAs/VAs: 20 to 30
Direct comparison
Voltage: 120 V, 240 V, 480 V, 600 V
Current: 0.25 A to 100 A
Power factor: 1 to 0, inductive or capacitive
Frequency: 60 Hz
Measurement time: 120 s
Approved on 05 January 2012
Internal NMI service identifier: CENAM/E012-001-06
Uncertainty table
 
DC voltage sources: single values. Solid state voltage standard, 1 V
Relative expanded uncertainty (k = 2, level of confidence 95%) in µV/V: 0.3
Ratio technique from 1.018 V to 1 V via a DVM
Room temperature: 23 °C
Ambient pressure: 81 kPa
Approved on 28 April 2011
Internal NMI service identifier: CENAM/E011-003-01
 
DC voltage sources: single values. Solid state voltage standard, 1.018 V
Relative expanded uncertainty (k = 2, level of confidence 95%) in µV/V: 0.3
Differential measurement using a redundant design
Room temperature: 23 °C
Ambient pressure: 81 kPa
Approved on 28 April 2011
Internal NMI service identifier: CENAM/E011-003-02
 
DC voltage sources: single values. Solid state voltage standard, 10 V
Relative expanded uncertainty (k = 2, level of confidence 95%) in µV/V: 0.3
Ratio technique from 1.018 V to 10 V via a DVM and a resistive divider
Room temperature: 23 °C
Ambient pressure: 81 kPa
Approved on 28 April 2011
Internal NMI service identifier: CENAM/E011-003-03
 
Transmittance, diffuse, spectral. Spectrally-neutral material, 0 to 1
Absolute expanded uncertainty (k = 2, level of confidence ~95%): 0.003
Spectrophotometer
Wavelength: 240 nm to 900 nm
Bandwidth: 1 nm to 5 nm
Specific measurement conditions: normal incidence
Best measurement capability is valid only using PTB-certified white reference standard; the uncertainty increases for NPL certified references.
Internal NMI service identifier: CENAM/520-D006-004
 
Reflectance, diffuse, spectral. Spectrally-neutral material, 0.003 to 1
Absolute expanded uncertainty (k = 2, level of confidence ~95%): 0.002 to 0.003, varies with measurand
Spectrophotometer
Wavelength range: 380 nm to 780 nm
Bandwidth: 1 nm to 5 nm
Specific measurement conditions: 8°/d, 8°/t
Best measurement capability is valid only using PTB-certified white reference standard; the uncertainty increases for NPL certified references.
Internal NMI service identifier: CENAM/520-D006-003
 
Colour, surface, x, y, Y. General material. x and y, 0.0001 to 1
Absolute expanded uncertainty (k = 2, level of confidence ~95%): 0.006
Spectrophotometer
Specific measurement conditions: 8°/d, 8°/t
Type of material: reflecting material
Internal NMI service identifier: CENAM/520-D006-003
 
Colour, surface, x, y, Y. General material Y, 0 to 100
Absolute expanded uncertainty (k = 2, level of confidence ~95%): 0.21
Spectrophotometer
Specific measurement conditions: 8°/d, 8°/t
Type of material: reflecting material
Internal NMI service identifier: CENAM/520-D006-003
 
Wavelength. Optical spectrum analyser, 600 nm to 1600 nm
Absolute expanded uncertainty (k = 2, level of confidence ~95%) in nm: 0.03
Approved on 21 September 2005
Internal NMI service identifier: CENAM/520-D003-008
 
Fibre optics. Length. Single-mode optical fibre, 1 km to 15 km
Absolute expanded uncertainty (k = 2, level of confidence ~95%) in m: 0.1
Phase shift method
Wavelength: 1310 nm, 1550 nm, 1625 nm
Standard used: vectorial network analyzer
Approved on 29 June 2010